By now, anyone who is even remotely related to an IT-type position has heard about Linux, and has most likely used it, if only to see what all the hype is about. However, GNU/Linux is not the only "free" Unix type OS available. FreeBSD and its cousins, NetBSD and OpenBSD are all offshoots of BSD UNIX, a commercial UNIX also known as Berkeley Software Distribution. This article will help you learn more about FreeBSD, its differences from Linux, and it will ease a potential migration process.